user
Write a response that appropriately completes the request.

### Instruction:
Share the scientific definition of the term “gravity”.

### Response:
assistant
Gravity is an attractive force that exists between any two objects in the universe due to their masses. It is the force that causes objects to be pulled toward each other, like a planet orbiting the sun, or objects falling to the ground. According to the theory of general relativity, gravity is caused by the curvature of space-time.